BOITE A BUTEES D'UNE VANNE A OBTURATEUR, VANNE A OBTURATEUR POURVUE D'UNE TELLE BOITE A BUTEES, PROCEDE D'ETALONNAGE D'UNE TELLE VANNE

摘要

The valve (1) includes a body (2) with a protective casing (7) and a rod (3) which controls an obturator (6). The rod crosses the casing (7) and presents a threaded segment (4) which has its extremity attached to the obturator. The casing houses a centring nut (9) attached to actuating means of the rod. Ball bearings (10) are mounted between the nut and the casing wall thus blocking the translation movement of the nut. A number of sensors (12) are provided inside the casing. One of the sensors measures the compression and traction effort occurring in the rod during its rotation.